Nobunaga Asaji is a student in Aoba High School.
He is a black haired teen with black eyes, his height is 184 cm, making him the tallest in their classroom.
Nobunaga is a mother figure like in Aoba High School, he's always there to assist the students who got hurt in some activities.
Honoka Tamarai and Akira Inukai's childhood friend.
- The Author of ReLIFE has noted that Nobunaga is terrible at Rock-Paper-Scissors
- He is a member of the Health Committee
- From first grade elementary school to senior year in high school, the team he is on has never won a inter-class competition. This jinx is based on an actual friend of the author. 
- Asaji's surename is an homage to the Asaji Station in Ōita, Japan.